Window-cleaning device



T. .J. DERRY.

WINDOW CLEANING DEVICE.

APPLICATION FILED MAY 2, 1919.

Patented Apr. 27, 1920.

2 SHEETSSHEET "mam. I

T. J. DERBY.

WINDOW CLEANING DEVICE.

APPLICATION FILED MAY 2. 1919.

1,338,002. Patented Apr. 27, 1920.

2 SHEETS-SHEET 2.

@ HIIIE IA/l/E/V rm THEE/J, BERRY UNITED STATES PATENT OFFICE.

THEODORE JOSEPH DERBY. 0F WINDSOR. ONTARIO, CANADA.

WINDOW-CLEANING DEVICE.

Specification ofLetters Patent. P t t 27, 1920,

Application filed May 2. 1919. Serial No. 294,352.

To all whom it may concern.

Be it known that l, THEODORE Josnrn DERRY, a citizen of the United States .of

America, and resident of the city of Vindvehicles, and the objects of the invention are to facilitate removing from the window, rain snow or other material inclined to adhere thereto, to permit of the device being used on cars at present in use. to simplify the construction of the several parts and render the same readily accessible for inspection and repair, and generally to adapt the device to better perform the functions required of it.

With the above and other objects in view the invention consists essentially of the im-" proved construction hereinafter described and set forth in the following.specification and accompanying drawings.

In the drawings: Figure 1 is a front elevation partly sectional of the improved window cleaning de vice.

Fig. 2 is a plan view of the rod carrying the window cleaning element.

Fig. 3 is an end view of the window cleaning element showing the spring controlled means for holding the element in operative position. i

Fig. 4 is a plan view of the spring controlled element shown in Fig. 3.

Fig. 5 is a front elevation of the T piece.

Fig. 6 is a plan view of the valve. Fig. 7 is a semi perspective view of the cock of the valve.

Fig. 8 is an end view of the window clean{ in element.

ig. 9 is a perspective view of the member for holding the window cleaning element.

Fig. 10 is an enlarged fragmentary vertical section of one of the cylinders showing the piston, spring, and method of packing.

Fig. 11 is'a perspective view of the packing flange.

Fig. 12 is a plan and side elevation of the bracket for holding the guides in position.

Like characters of reference refer to like parts in the several figures.

Referringto the drawings, A represents a vehicle window of the street or railway car type, and B the improved device for cleaning the glass of the window. This window cleaning device comprises a pair or a plurality of cylinders 10 in which the pistons 11 are reciprocably mounted, the pistons being each provided with a piston rod 12 having a T piece 13 on the outer end designed to be secured to the ends of the rods ,11' which carry the window cleaning element.

In the ends of the cylinder, springs 15 are located to give a cushioning effect, and the top cover 16 is provided with a. packing flange 17 which coacting with the packing 18 to render the piston rods 12 steam or air tight. I

The upper ends of the cylinders are connected by pipes 18 with the pipe 9 which is connected to a valve 19, and the lower ends of the cylinders are connected by pipes 20, which in turn are connected through the vertical pipe 21 with the valve 19.

This valve is supplied with steam or other motive fluid through the pipe 22.

The window cleaning element comprises a rod 23 tipped with rubber and mounted on members 24 carried by the rod 11 and are held in position by springs 25 located between the member 24 and a clamping member 26 mounted on the rod 14.

The guide members 27 are arranged in alinement with the cylintlers 10 and are sup ported at the upper and lower ends by brackets 28, and the piston rods 12 or the rod 14: may be caused to coact with those guides 27, either by clamps or rollers or in rocating motion of the same.

. The cock 30 of the valve 17 may be of any convenient shape whereby either the upper ends or the lower ends of the cylinders 10 may be put in communication with the supply of motive fluid by simply turning the cock to the desired position.

When this device is in use the operator actuates the cock 30 permitting steam or other motive fluid to flow through the pipe 22, valve 19, pipe 21 and pipes 20 into the lower end of the cylinders 10 so moving the pistons 11 upwardly and causing the rubber tipped rod 23 to remove any rain, snow 01 other matter adhering to the window.

By simply actuating the cock 30 of the valve the motive fluid can be admitted to the upper end of the cylinders through the pipe 22, valve 19, pipe 9 and pipes 18 moving the pistons 11 downwardly, so that the rubber tipped rod 23 will then remove any water or snow, etc., adherin to the window. At the end of the stroke 0 the pistons a cushioning effect is given by the springs 15. A suit- .able exhaust pipe 8 is provided in the valve 19.

From this description it will be seen that I have invented a window cleaning device which can be advantageously utilized in street and railway cars and in which the actual cleaning of the window can be effected in a few minutes.

As many changes could be made in the above construction, and many apparently widely different embodiments of my invention, within the scope of the claim, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specificaacross a window pane, of a cleaner rod provided at its opposite ends with supporting arms having bearing portions pivotally mounted on the cross rod, clamping members also mounted on the cross rod and straddling the supporting arms to prevent sliding movement thereof with respect to the cross rod, and springs interposed between the clamping member and the supporting arms to hold the cleaner rod against a win- .dow pane.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

THEODORE JOSEPH DERRY.

Witnesses:

ALomE F. FENDELL, M. OAMPEAU. 

